SCHUNK STM 48V - STM Overspeed; STM Oscillates; Bearing Noise

Troubleshooting
66 05/STM-48V/en/2011-04-01/CW
13.1.2 STM overspeed
Possible cause
Corrective action
Controller settings not ideal
 Check the controller settings (direction of rotation of
motor and encoder direction of counting).
Insufficient power supply for the controller's
power component
 Check the stability of the supply voltage. Use
transformers instead of a switching power supply
component.
Table 34
13.1.3 STM oscillates
Possible cause
Corrective action
Motor overload
 Check the dimensioning
 Reduce the load
 Check the controller settings
Controller settings not ideal
 Check the controller settings
Table 35
13.1.4 Bearing noise
Possible cause
Corrective action
Incorrect assembly
 Check the evenness at the mounting surface (see
chapter 7.1, page 27)
Configuration incorrect
 Check the parameters and setting values (see
operating manual for the controller).
Bearing defective due to overload
 Send the module to SCHUNK with a repair order.
Table 36